Seller notes

Oldsmobile Heat Riser Block Off Plates These stainless steel plates easily block off the heat riser passages on your stock cylinder heads. Indentation goes down into the head, attach with a small amount of high heat tolerant silicone then place intake gasket on top. Reusable. Set of 2. Established in 1974, Mondello Performance Products is the leading innovator in aftermarket parts for Oldsmobile V8 Engines, 1964-1990.Please visit our MONDELLO PERFORMANCE PRODUCTS website for deals and specials o...

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